1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
4vir4ik [10]
2 years ago
12

.500 mol of br2 and .500 mol of cl2 are placed in a .500L flask and allowed to reach equilibrium. at equilibrium the flask was f

ound to contain .300 mol of brcl. What is the value of Kc for this reaction?Br2(sol) + Cl2(sol) ⇌ 2 BrCl (sol)
Chemistry
2 answers:
Tasya [4]2 years ago
6 0

Answer : The value of K_c for the given reaction is, 0.36

Explanation :

Equilibrium constant : It is defined as the equilibrium constant. It is defined as the ratio of concentration of products to the concentration of reactants.

The equilibrium expression for the reaction is determined by multiplying the concentrations of products and divided by the concentrations of the reactants and each concentration is raised to the power that is equal to the coefficient in the balanced reaction.

As we know that the concentrations of pure solids and liquids are constant that is they do not change. Thus, they are not included in the equilibrium expression.

The given equilibrium reaction is,

Br_2(aq)+Cl_2(aq)\rightleftharpoons 2BrCl(aq)

The expression of K_c will be,

K_c=\frac{[BrCl]^2}{[Br_2][Cl_2]}

First we have to calculate the concentration of Br_2,Cl_2\text{ and }BrCl.

\text{Concentration of }Br_2=\frac{Moles}{Volume}=\frac{0.500mol}{0.500L}=1M

\text{Concentration of }Cl_2=\frac{Moles}{Volume}=\frac{0.500mol}{0.500L}=1M

\text{Concentration of }BrCl=\frac{Moles}{Volume}=\frac{0.300mol}{0.500L}=0.6M

Now we have to calculate the value of K_c for the given reaction.

K_c=\frac{[BrCl]^2}{[Br_2][Cl_2]}

K_c=\frac{(0.6)^2}{(1)\times (1)}

K_c=0.36

Therefore, the value of K_c for the given reaction is, 0.36

vodka [1.7K]2 years ago
6 0

Answer:

Kc for the reaction is 0.735

Explanation:

Step 1: Data given

Moles of Br2 = 0.500 moles

Moles of Cl2 = 0.500 moles

Volumes = 0.500 L

At the equilibrium we have 0.300 moles of BrCl

Step 2: The balanced equation

Br2(sol) + Cl2(sol) ⇌ 2 BrCl (sol)

Step 3: The concentration at the start

[Br2] = 0.500 moles / 0.500 L = 1 M

[Cl2] = 0.500 moles / 0.500 L = 1M

[BrCl] = 0 M

Step 4: Concentration at the equilibrium

For Br2 and Cl2 there will react X

For BrCl there will be consumed 2X

[Br2] = (1-X)M

[Cl2] = (1-X)M

[BrCl] = 2X = 0.300/0.500 = 0.600 M

X = 0.300

[Br2] = (1-X)M = 0.700

[Cl2] = (1-X)M = 0.700

Step 5: Calculate Kc

Kc = [BrCl]²/[Br2][Cl2]

Kc = 0.600² / (0.700*0.700)

Kc = 0.735

Kc for the reaction is 0.735

You might be interested in
What is the study of clouds called?
Kamila [148]
The answer is Nephology
5 0
3 years ago
A hydrocarbon sample was burned in a bomb calorimeter. The temperature of the calorimeter and the 1.00 kg of water rose from 20.
fomenos

Answer:

The heat released by the combustion is 20,47 kJ

Explanation:

Bomb calorimeter is an instrument used to measure the heat of a reaction. The formula is:

Q = C×m×ΔT + Cc×ΔT

Where:

Q is the heat released

C is specific heat of water (4,186kJ/kg°C)

m is mass of water (1,00kg)

ΔT is temperature change (23,65°C - 20,45°C)

And Cc is heat capacity of the calorimeter (2,21kJ/°C)

Replacing these values the heat released by the combustion is:

<em>Q = 20,47 kJ</em>

6 0
3 years ago
What method will you use for your campaign?
Allushta [10]
Sorry I’m only answering so I could upload
6 0
2 years ago
Given the following equation, what is the actual yield of potassium chloride if the percent yield is 94% and you have 750 g of o
ivanzaharov [21]

Answer:

ly/3gVQKw3

Explanation:

DON'T PRESS ON THAT LINK PLZ

4 0
3 years ago
_H2SO4 + __ B(OH)3 = _ B2(SO4)3 + __ H2O
Nana76 [90]

Answer:

3H2SO4 + 2B(OH)3 -> B2(SO4)3 + 6H2O

Explanation:

3 0
3 years ago
Other questions:
  • The type of chemical bond that involves the transfer of electrons between atoms is a(n) bond.
    10·2 answers
  • The main function of the circulatory system (at least a paragraph)!
    10·1 answer
  • I saw someone answered this question but I couldn’t see the answer-
    15·1 answer
  • Which reaction can provide the energy needed to run an endergonic reaction?
    9·1 answer
  • Combining Boyle's law and Charles' law forms one presure-temperature-volume relationship and holds the mass of the gas constant.
    15·1 answer
  • Which statements about cirrus clouds are true? Choose all answers that are correct. A. Cirrus clouds form high in the sky. B. Ci
    6·1 answer
  • Please please help me please!!!?
    6·1 answer
  • How much energy is required to raise the temperature of a 300.0
    11·1 answer
  • Which particle is an atom with only 10 neutrons in its nucleus ?
    7·1 answer
  • Calculate the volume of liquid in the tank sketched below. Give your answer in liters, and round to the nearest 0.1 L.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!